<template>
  <div>
    <el-upload
        :action="uploadUrl"
        :before-upload="handleBeforeUpload"
        :on-success="handleUploadSuccess"
        :on-error="handleUploadError"
        name="file"
        :show-file-list="false"
        :headers="headers"
        class="editor-img-uploader"
        v-if="type == 'url'"
    >
      <i ref="uploadRef" class="editor-img-uploader"></i>
    </el-upload>
  </div>
  <div class="editor">
    <quill-editor
        ref="quillEditorRef"
        v-model:content="content"
        contentType="html"
        @textChange="(e: any) => $emit('update:modelValue', content)"
        :options="options"
        :style="styles"
    />
  </div>
</template>

<script setup lang="ts">
import {ref, getCurrentInstance, watch, onMounted, computed, toRaw} from "vue";
import modal from "@/plugins/modal";
import {QuillEditor} from "@vueup/vue-quill";
import "@vueup/vue-quill/dist/vue-quill.snow.css";
import {getToken} from "@/utils/Auth";
import {useI18n} from "vue-i18n";

const {t} = useI18n()
const {proxy} = getCurrentInstance()!;

const quillEditorRef: any = ref();
const uploadUrl: any = ref(import.meta.env.VITE_APP_BASE_API + "/common/upload"); // 上传的图片服务器地址
const headers: any = ref({
  Authorization: "Bearer " + getToken()
});

const props: any = defineProps({
  /* 编辑器的内容 */
  modelValue: {
    type: String,
  },
  /* 高度 */
  height: {
    type: Number,
    default: null,
  },
  /* 最小高度 */
  minHeight: {
    type: Number,
    default: null,
  },
  /* 只读 */
  readOnly: {
    type: Boolean,
    default: false,
  },
  /* 上传文件大小限制(MB) */
  fileSize: {
    type: Number,
    default: 5,
  },
  /* 类型（base64格式、url格式） */
  type: {
    type: String,
    default: "base64",
  }
});

const options: any = ref({
  theme: "snow",
  bounds: document.body,
  debug: "warn",
  modules: {
    // 工具栏配置
    toolbar: props.readOnly ? [] : [
      ["bold", "italic", "underline", "strike"],      // 加粗 斜体 下划线 删除线
      ["blockquote", "code-block"],                   // 引用  代码块
      [{list: "ordered"}, {list: "bullet"}],      // 有序、无序列表
      [{indent: "-1"}, {indent: "+1"}],           // 缩进
      [{size: ["small", false, "large", "huge"]}],  // 字体大小
      [{header: [1, 2, 3, 4, 5, 6, false]}],        // 标题
      [{color: []}, {background: []}],            // 字体颜色、字体背景颜色
      [{align: []}],                                // 对齐方式
      ["clean"],                                      // 清除文本格式
      ["link", "image", "video"]                      // 链接、图片、视频
    ],
  },
  placeholder: props.readOnly ? "" : t('pleaseInput'),  // ✅ 只读时清空 placeholder
  readOnly: props.readOnly
});

const styles: any = computed(() => {
  let style: any = {};
  if (props.minHeight) {
    style.minHeight = `${props.minHeight}px`;
  }
  if (props.height) {
    style.height = `${props.height}px`;
  }
  return style;
});

const content: any = ref("");
watch(() => props.modelValue, (v: any) => {
  if (v !== content.value) {
    content.value = v === undefined ? "<p></p>" : v;
  }
}, {immediate: true});

// 如果设置了上传地址则自定义图片上传事件
onMounted(() => {
  if (props.type == 'url') {
    let quill: any = quillEditorRef.value.getQuill();
    let toolbar: any = quill.getModule("toolbar");
    toolbar.addHandler("image", (value: any) => {
      if (value) {
        proxy.$refs.uploadRef.click();
      } else {
        quill.format("image", false);
      }
    });
  }
});

// 上传前校检格式和大小
function handleBeforeUpload(file: any): any {
  const type: any = ["image/jpeg", "image/jpg", "image/png", "image/svg"];
  const isJPG: any = type.includes(file.type);
  //检验文件格式
  if (!isJPG) {
    modal.msgError(t('wrongPictureFormat'));
    return false;
  }
  // 校检文件大小
  if (props.fileSize) {
    const isLt: any = file.size / 1024 / 1024 < props.fileSize;
    if (!isLt) {
      modal.msgError(`${t('limitUpload')} ${props.fileSize} MB!`);
      return false;
    }
  }
  return true;
}

// 上传成功处理
function handleUploadSuccess(res: any, file: any): any {
  // 如果上传成功
  if (res.code == 200) {
    // 获取富文本实例
    let quill: any = toRaw(quillEditorRef.value).getQuill();
    // 获取光标位置
    let length: any = quill.selection.savedRange.index;
    // 插入图片，res.url为服务器返回的图片链接地址
    quill.insertEmbed(length, "image", import.meta.env.VITE_APP_BASE_API + res.fileName);
    // 调整光标到最后
    quill.setSelection(length + 1);
  } else {
    modal.msgError(t('failInsertPicture'));
  }
}

// 上传失败处理
function handleUploadError(): any {
  modal.msgError(t('failInsertPicture'));
}
</script>

<style>
.editor-img-uploader {
  display: none;
}

.editor, .ql-toolbar {
  white-space: pre-wrap !important;
  line-height: normal !important;
}

.quill-img {
  display: none;
}

.ql-snow .ql-tooltip[data-mode="link"]::before {
  content: "请输入链接地址:";
}

.ql-snow .ql-tooltip.ql-editing a.ql-action::after {
  border-right: 0px;
  content: "保存";
  padding-right: 0px;
}

.ql-snow .ql-tooltip[data-mode="video"]::before {
  content: "请输入视频地址:";
}

.ql-snow .ql-picker.ql-size .ql-picker-label::before,
.ql-snow .ql-picker.ql-size .ql-picker-item::before {
  content: "14px";
}

.ql-snow .ql-picker.ql-size .ql-picker-label[data-value="small"]::before,
.ql-snow .ql-picker.ql-size .ql-picker-item[data-value="small"]::before {
  content: "10px";
}

.ql-snow .ql-picker.ql-size .ql-picker-label[data-value="large"]::before,
.ql-snow .ql-picker.ql-size .ql-picker-item[data-value="large"]::before {
  content: "18px";
}

.ql-snow .ql-picker.ql-size .ql-picker-label[data-value="huge"]::before,
.ql-snow .ql-picker.ql-size .ql-picker-item[data-value="huge"]::before {
  content: "32px";
}

.ql-snow .ql-picker.ql-header .ql-picker-label::before,
.ql-snow .ql-picker.ql-header .ql-picker-item::before {
  content: "文本";
}

.ql-snow .ql-picker.ql-header .ql-picker-label[data-value="1"]::before,
.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="1"]::before {
  content: "标题1";
}

.ql-snow .ql-picker.ql-header .ql-picker-label[data-value="2"]::before,
.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="2"]::before {
  content: "标题2";
}

.ql-snow .ql-picker.ql-header .ql-picker-label[data-value="3"]::before,
.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="3"]::before {
  content: "标题3";
}

.ql-snow .ql-picker.ql-header .ql-picker-label[data-value="4"]::before,
.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="4"]::before {
  content: "标题4";
}

.ql-snow .ql-picker.ql-header .ql-picker-label[data-value="5"]::before,
.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="5"]::before {
  content: "标题5";
}

.ql-snow .ql-picker.ql-header .ql-picker-label[data-value="6"]::before,
.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="6"]::before {
  content: "标题6";
}

.ql-snow .ql-picker.ql-font .ql-picker-label::before,
.ql-snow .ql-picker.ql-font .ql-picker-item::before {
  content: "标准字体";
}

.ql-snow .ql-picker.ql-font .ql-picker-label[data-value="serif"]::before,
.ql-snow .ql-picker.ql-font .ql-picker-item[data-value="serif"]::before {
  content: "衬线字体";
}

.ql-snow .ql-picker.ql-font .ql-picker-label[data-value="monospace"]::before,
.ql-snow .ql-picker.ql-font .ql-picker-item[data-value="monospace"]::before {
  content: "等宽字体";
}
</style>
